Combination lock



March 20, 1928.

|.; TREPANIER COMBINATION LOCK" Filed Jan. 19. .1927

Attorney Inventor Patented Mar. 20, 1928.

umm STATES PATENT Q B-f IVAN PEBBLE-IE3, OF WATE'RBU-RY, CONNECTICC'T.

' COMBINATION- LOCK.

bpplication'flledlanuary'19, 1927. SerialNo. 162,093.

This invention relatesto what is common'ly known in the art as acombination lock; that is, a device which-includes,among other parts, knob actuated} disks and? a graduated indicating dial for showing the relative positions of the disks j The presentimprovementi is directed to a casing wherein a plurality ofsuperposed disks are arranged for independent rotation. these being provided with notches adapted to be brought into registry with each other by proper manipulation of" an operating shaft, the disksiserving: to control a novel latch structure which functions as coupling and retaining means betweenthe casing and a special kee er plate. v

The specific construction of the details together with their relative arrangement, producing the alle ed novelty, will become apparent from the following description and drawings.

In the accompanying drawings forming a part of this application, and in which like numerals are employed to designate like parts throughout the same Figure 1 is a view in side elevation, showing the cover plate of the casing removed,

Fig. 2 is a horizontal section through the same,

Fig. 3 is a perspective view of a prominent detail,

Fig. 4 is a top plan view of one of the locking disks, 7

Fig. 5 is a perspective view of the knob operated shaft.

Referring to the drawings in detail, it will be seen that the reference character 1 designates a casing of suitable configuration open on one side and of a depth to accommodate the tumbler disks structure 2. A cover plate 3 is disposed over said open side and held in place by retaining bolts 4. The reference character 5 designates a face plate disposed against one side L of the support 6 and held in place by the bolts 4. a

At this time, I would direct attention to the fact that the disk structure 2 includesfour separate disks 7 three of which are represented by the reference character 7 and one by the reference character 7 The disks 7 are provided with depressions 8 on one side and an extension 9 on the opposite side together with an intervening notch 10. gsee Fig. 4.) These disks 7 are mounted or free rotation upon a bushing which is in thy-I1 mounted uponan' operating shaft 11. i

The disk 7 is fastened rigidly to the'sha'f't however, and is provided with an appropria te cam as shown in Fig. 1. Theslia'ft 1s bifurcated at one end as at 12' and extends through an opening in: thesuppont-(S and beyond this opening, and ai knobi 13 is fitted thereon and: provided witlr a cross pin 14 extending through and beyond the furcations. P v

The disks 7 and 7 cooperate in acustomi ary manner upon rotation of the' shaft so that when rotating the shaft. in a predetermined manner, .the notches on the, several disks 7 may be brought into registry-s In this connection, attention is invited toan indicating dial 15 whioh'cooperate's with the knob-to indicate the approximate condition of the concealed disks on the interior of the casing.

Obviously, by rotating the shaft in one direction for a predetermined distance, the cooperating pins 9 on the disks will successively come into play for picking up the disks in proper order to bring the notches into registry. Incidentally, the depressions 8 have no function in the operation of the tumblers, this being merely one way of forming the extension pins 9. Attention is now invited to Fig. 3, wherein it will be seen that the reference character 16 designates generall a latch and operating means therefor. he latch itself is designated by the reference character 17 andcomprises a fiat metal strip, having one end directed upwardly as at 18 and terminating in a horizontal extremity 19.

A right angular part 20 on the opposite end serves to provide somewhat the same sort of a retainer. T hese retainers 1'9 and 20 are adapted to extend through openings in guide brackets 21 on the interior of the casing, and also through openings in ears 22 actuator 26. ."The latter is provided atits lower end with spaced parallel ears 27 pivotally connected in the casing in the manner shown. 7

A flat spring 28 is mounted in the casing and cooperates with these ears in a manner to exert pressure upon the actuator to swing 15 and the spindle or shaft 11.

itin a direction toward the tumbler disks. The intermediate portion of the actuator is provided with a bracket 29 of right angular form which is mounted to permit one flange thereof to move into the registered notches 10.

In practice, the knob 13 is operated in a customary manner to also operate the dial This will operate the tumblers in a successive and well known manner in'order to bring the notches 10 into registry upon proper manipulation of the-tumblers as indicated by the dial. I

would direct attention to the fact that the pin and sloticonnection between the knob and thespindleis such as to allow the knob to move outwardly and yet maintain a rotating connection with the spindle in case of an increased thickness in the mounting memher 6. I

Obviously, when the notches are in alinementor registry, this allows the bracket 29 to snap intothe same, and in so doing, it serves to exert an endwise thrust upon the latchl? to disengage the retainers 19 and 20 from the keepers 2 It is believedthat by considering the de scription in connectionwith the drawings, a clear understanding of the invention will be had. Therefore, a more lengthy description is thought unnecessary. y,

a Having thus described my invention, what I claim as new is In a structure of the class described, a, hollow casing, a spindle mounted for rota tion in said casing, tumbler disks carried by said spindle, said disksbeing provided with notches adapted to be brought into registry, and with cooperating means for operating them in succession andnnderpredetermined conditions, a pivot-ally mounted actuator in said casing provided with a bracket adapted to be received in said notches when. iuregistry, a latchdisposed at right angles to said actuator, said latch having one endbifurcated, and the fur-cations being formed to engage the upper end of said actuator, said latch being also provided with a pair of retainers, and apertured brackets, in said casing with which said retainers are adapted to slidably coact. i

In testimony whereof I affix my signature.

IVAN TREPANIER; 

